GM Service Manual Online
For 1990-2009 cars only

Engine Mount Replacement - Left Side RWD


Object Number: 2143722  Size: MF

Callout

Component Name

Preliminary Procedures

  1. Discharge the air conditioning (A/C) system. Refer to Refrigerant Recovery and Recharging.
  2. Remove the tower brace. Refer to Cross Vehicle Brace Replacement.
  3. Raise the vehicle. Refer to Lifting and Jacking the Vehicle.
  4. Remove the suction hose from the A/C compressor. Refer to Suction Hose Replacement.
  5. Position the hose aside to gain access to the engine mount top nut.
  6. Lower the vehicle.

1

Engine Mount Fastener

Caution: Refer to Component Fastener Tightening Caution in the Preface section.

Procedure

  1. Raise the vehicle. Refer to Lifting and Jacking the Vehicle.
  2. Position a screw jack and a block of wood under the engine oil pan.

Tighten
100 N·m (74 lb ft)

2

Engine Mount Fastener

Procedure

The engine mount nuts must be replaced once loosened or removed.

Tighten
100 N·m (74 lb ft)

3

Engine Mount

Procedure

  1. Using the screw jack, raise the engine enough to remove the engine mount.
  2. Install the new right and left engine mount lower nut first.

Engine Mount Replacement - Left Side AWD

Removal Procedure

Caution: Secure the steering wheel utilizing a strap to prevent rotation. Locking of the steering column will prevent damage and a possible malfunction of the SIR system. The steering wheel must be secured in position before disconnecting the following components:

   • The steering column
   • The intermediate shaft
   • The steering gear
After disconnecting these components, do not move the front tires and wheels. Failure to follow these procedures may cause improper alignment of some components during installation and result in possible damage to the SIR coil.


    Object Number: 2044107  Size: SH
  1. Disconnect the battery ground cable. Refer to Battery Negative Cable Disconnection and Connection.
  2. Remove the cross vehicle brace. Refer to Cross Vehicle Brace Replacement.
  3. Remove the exhaust system. Refer to Exhaust System Replacement.
  4. Remove the right and left lower engine mount retaining nuts.
  5. Disconnect the lower intermediate steering shaft from the steering gear and position the shaft aside. Refer to Intermediate Steering Shaft Replacement.
  6. Remove the upper engine mount retaining nut (1).

  7. Object Number: 2039323  Size: SH
  8. Install a screw jack with a block of wood under the oil pan for support.
  9. Support the rear of the front frame with a screw jack.
  10. Remove the frame rear (1) and center (2) mounting bolts.
  11. Loosen the front frame bolts (3) 12.7 mm (0.5 in) to 25.4 mm (1 in).
  12. Lower the rear section of the frame.
  13. Raise the engine using the screw jack until the weight is removed from the mount.
  14. Lower the screw jack under the frame.
  15. Remove the engine mount (1) from the vehicle.

Installation Procedure


    Object Number: 2044172  Size: SH
  1. Install the engine mount (1).
  2. Raise the rear section of the frame.

  3. Object Number: 2039323  Size: SH
  4. Install but do not tighten the frame rear (1) and center (2) mounting bolts.
  5. Caution: Refer to Fastener Caution in the Preface section.

    Note: Ensure to tighten the frame bolts in sequence.

  6. Tighten the frame bolts.
  7. 4.1. Tighten the left front frame bolt to 191 N·m (141 lb ft).
    4.2. Tighten the right front frame bolt to 191 N·m (141 lb ft).
    4.3. Tighten the center front frame bolts to 191 N·m (141 lb ft).
    4.4. Tighten the rear front frame bolts to 191 N·m (141 lb ft).
  8. Remove the screw jack from the rear of the front frame.
  9. Remove the screw jack and block of wood from under the oil pan.

  10. Object Number: 2044107  Size: SH
  11. Install the upper engine mount retaining nut (1) and tighten to 80 N·m (59 lb ft).
  12. Install the right and left lower engine mount retaining nuts and tighten to 80 N·m (59 lb ft).
  13. Connect the lower intermediate steering shaft to the steering gear. Refer to Intermediate Steering Shaft Replacement.
  14. Install the exhaust system. Refer to Exhaust System Replacement.
  15. Lower the vehicle.
  16. Install the cross vehicle brace. Refer to Cross Vehicle Brace Replacement.
  17. Connect the battery ground cable. Refer to Battery Negative Cable Disconnection and Connection.